22389884 has 48 divisors (see below), whose sum is σ = 46539360. Its totient is φ = 9308160.

The previous prime is 22389883. The next prime is 22389889. The reversal of 22389884 is 48898322.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22389883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27272 + ... + 28080.

It is an arithmetic number, because the mean of its divisors is an integer number (969570).

Almost surely, 2^22389884 is an apocalyptic number.

It is an amenable number.

22389884 is an abundant number, since it is smaller than the sum of its proper divisors (24149476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22389884 is a wasteful number, since it uses less digits than its factorization.

22389884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 876 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 22389884 is about 4731.7950082395. The cubic root of 22389884 is about 281.8495080871.

The spelling of 22389884 in words is "twenty-two million, three hundred eighty-nine thousand, eight hundred eighty-four".